Incompatibility with Flutter 3.29.0 - Registrar API Removed (error: cannot find symbol import io.flutter.plugin.common.PluginRegistry.Registrar;)

[Forzali]

Hello,

I’m encountering a compilation error when trying to use the mic_stream library with Flutter 3.29.0. The issue stems from the use of PluginRegistry.Registrar in MicStreamPlugin.java. In recent Flutter versions (with V2 embedding), the Registrar API has been deprecated and removed in favor of the FlutterPlugin API. As a result, the library is currently incompatible with the latest Flutter releases.

Here’s the error message I’m getting:

.pub-cache/hosted/pub.dev/mic_stream-0.7.1+2/android/src/main/java/com/code/aaron/micstream/MicStreamPlugin.java:24: error: cannot find symbol
import io.flutter.plugin.common.PluginRegistry.Registrar;
                                              ^
  symbol:   class Registrar
  location: interface PluginRegistry

To work around this, I’m planning to fork the library and update MicStreamPlugin.java to use FlutterPlugin, but it would be incredibly helpful if the library could be officially updated. I noticed it hasn’t been maintained for 16 months—any plans to release an update soon? It’d be great for the community if this issue could be addressed.

Thanks!

[anarchuser]

Hi, yes, I've seen your PR (#101) and I am very happy that you took the initiative in fixing the issue.

Unfortunately, I myself am not using this library anymore, nor am I active in app development in itself. As such, I cannot proactively follow and adjust to changes in the Flutter framework.

I also don't have any plans to make major updates to this library for different reasons -

• I can only develop for and test the android portion of the PR. Any changes that require modifications in other platform code (iOS, macOS) are impossible.
• There aren't really significant missing features. The interface is about as simple as possible within reason, and it's fundamentally working. I want to keep it running for as long as possible, but I believe any work only risks to break it.

Regardless - it is my highest priority to keep this library up to date with Flutter's on-going development.
So thank you for your efforts and patience.
Best regards

[abinvs-2019]

I think for now:
mic_stream:
git:
url: https://github.com/Forzali/mic_stream.git
could work.

[anarchuser]

Please try upgrading to version 0.7.3-dev